PURPOSE

Motor-driven bridge crane is installed in inner spaces of ocean-going ships in order to perform auxiliary loading-unloading works at normal operation at ship list not exceeding 4°, roll with amplitude up to 6.5° and period 6.6 s.

Parameter

КЭМ 20 / 5

Capacity (SWL), t

20 / 5

Travel of crane bridge, mm

28000

Travel of cargo trolley, mm

20 tf — 11300

5 tf — 12450/15200

Travel of cabin, mm

13200

Bridge span, mm

15400

Maximum vertical hook travel, mm

20 tf — 20550

5 tf — 21850

Height of remote control board suspension, mm

controls from cabin

Speed of cargo lifting (lowering) and unloaded hook, m/s (m/min):

maximum

minimum

 

0.117 (7.0)±10 %

0.0017 (0.1)±3 %

Speed of bridge movement, maximum, m/s (m/min)

0.117 (7.0)±10 %

Speed of trolley movement, maximum, m/s (m/min)

0.067 (4.0)±10 %

Speed of cabin movement, m/s (m/min)

0.067 (4.0)±10 %

Speed control

smooth, stepless

Operation duty

medium duty cycle – 25%

Total crane motors capacity, kW

70

Crane mass, kg, not more

35000

Overall dimensions, mm:

length

breadth

 

16400

3270

Motor-driven bridge crane КЭМ 20 / 5